????:1???yp??:????????????

2???"??"???

3????????

4????????????

5????app

?????2??????????17??? ?(??????????????“????????????”)17?????????????????,???????????????37.7%????????????????,?2??

???????????????????,??,????“????????????”,???

?????????????,????????????????35????,??????????????????5????????????????????,??????????,????????????,??,??????????

??????????,?????????????????,????????(54.3%)????????????????????,???????????????????2???????????,???????????????3.5??????????

???,?????????????,??,??????(46.6%)?????

????????“???”?????????,??????????????????,?????12??????17???12.5%????????18.4%,??????????????????,?????????????????????(??????) ??:??